Bearings are subjected to certain levels of repeated stress or dynamic loading on their raceways and rolling elements during operation under proper loading, appropriate mounting and sufficient lubrication. These conditions may cause flaking damage. This damage on the surface, after a certain time period is due to stress concentration. This phenomenon is called flaking and will result in bearing failure after repeated cycles which is referred to as ‘Bearing Life’. Generally, bearing life is defined as the total number of rotations (cycles or hours) of the bearing until this flaking is generated on the bearing races or rolling elements.